A model of composite laminated beam based on the global-local theory and new modified couple-stress theory

被引：28
|
作者：
Chen, Wanji [1 ]
Si, Junling [1 ]
机构：
[1] Shenyang Aerosp Univ, Key Lab Liaoning Prov Composite Struct Anal Aeroc, Shenyang 110136, LN, Peoples R China
来源：
COMPOSITE STRUCTURES | 2013年 / 103卷
关键词：
Composite laminated Reddy beam model; Global-local higher-order theory; Scale effect; Modified couple stress theory; STRAIN GRADIENT ELASTICITY; SHEAR DEFORMATION; DYNAMIC-ANALYSIS;
D O I：
10.1016/j.compstruct.2013.03.021
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper, a model of composite laminated beam based on the global-local theory for new modified couple-stress theory is developed. For the modified couple-stress theory, an anisotropic constitutive relation is suggested. There is only one microlength-scale parameter in each ply of the composite laminated beam. The Reddy beam model of global-local higher-order theory proposed by Chen and Wu (2005) [1], which satisfies free surface conditions and the geometric and stresses continuity conditions at interfaces, and is adopted to formulate this model. On the model of laminated beam of modified couple stress theory, the transverse shear stress with scale effect is presented for the first time. Numerical results show that the proposed beam model can capture the scale effect at interfaces of the microstructure of the composite laminated beam. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：99 / 107
页数：9
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